Edwin g



(No Model.)

E. G. MUMMBRY. HYDROGARBON BURNER.

Patented'Mar. 20.,.1894.

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' cap, the one separated from the other.

NITED STATES PATENT OFFICE.

EDWIN G. MUMMERY, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-THIRD TO JOHN S. SHERMAN AND GEORGE H. HARMS, OF SAME PLACE.

HYDROCARBONBURN ER.

SPECIFICATION forming part of Letters Patent No. 516,872, dated March 20, 1894.

Application tiled May l, 1893. Serial No.472,523. (No model.)

To @ZZ whom zit may concern.-

Be it known that I, EDWIN G. MUMMERY,a citizen of the United States, residing at Detroit, county of Wayne, State of Michigan', have invented a certain new and useful Improvement in Hydrocarbon-Burners; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to certain new and useful improvements in a hydrocarbon burner, having for its objects, superior efficiency, simplicity and economy, and it consists of the devices and appliances, their construction, combination and arrangement as hereinafter specified and claimed, and illustrated in the accompanying drawings, in which- Figure 1 is a vertical central section. Fig. 2 is a plan view. Fig. 3 isla detail View of one of the interior perforated walls with its Fig. 4 is a separate view of the channeled base. Fig. 5 is a cross section through one of the perforated walls and cap.

The purpose of my invention contemplates more especially a novel hydrocarbon burner in which no wick is used, 'but in which provision is made for a most thorough and com` plete vaporization of the hydrocarbon fuel, and for a most thorough and ample supply of oxygen to secure and support perfect combustion.

I carry out my invention as follows:

I prefer to construct my burner of annular form, although I do not limit myself to any precise shape or form.

As shown, A represents a channeled base, with which a fuel supply pipe Q communicates. This base isl constructed with an annular channel a about the periphery thereof, and with channels radiating from the center communicating at their outer ends with the annular channel a and centrally communicating one with another. These radiating channels are herewith shown, three in number, at a, d ad I do not however limit myself to this precise number of the radiating channels, as there maybe two or more, as may be desired. The spaces formed between the radiating channels and the surrounding annular channel are open, to admit air freely therethrough,.such air spaces being shown at 604, ai as. The channeled base may be provided with supporting arms A. It will be perceived that in the formation of the annular channel the baseA is constructed with an exterior vertical flange 6o A2, while about each of the air spaces @4, ai a6 is formed a Vertical flange of corresponding shape, as shown at A3. It will be perceived that the fuel from the supply pipe thus ows freely into and through the annular channel and radiating channels of the base, while abundance of air is supplied through the air spaces a4, a5, a6, as well as about the exterior of the base. Through and extending above each of the air spaces ct-t, ai 0.6 is located a perforated wall, shown in Fig. 4 in d otted lines, at B, B', B2, of a shape in cross section corresponding to the shape of the corresponding airspace beneath. Such shape, as shown, is formed by two angular sides 75 forming an obtuse angle and the arc of a circle of the other side of said space.l This particular form, however, is not material. The perforated walls B, B-, B2 are held in place by the upwardly extended iange about the 8o corresponding air spaces, at the base of said wall, the lower end of the wall extending over said flange. At the top of each of the perforated walls B, B', B2 is located a closed cap, shown at C, C', O2. Each cap may be made 8: with a downwardly extended flange, shown at u 0, about which the upper end of the wall is located. These caps are in the nature of deliectors to compel the air admitted through the corresponding air space into the interior 9o of the wall thereabove to pass outward through the perforations'of the wall on every side thereof. Between the various perforated walls B, B', B2 and above the radiating channels, are thus formed upwardly extending air 95 chambers or flues, as shown at 1), b, 292, the air passing from the interior of the perforated walls into these radiating air chambers or ilues, as well as outward over the annular channel of the base.

D denotes an outer perforated drum surrounding the walls B,B, B2 and spaced therefrom. This outer perforated drum may be located within the outer flange A2.

IOO

E represents an exterior closed or solid drum located outside the perforated drum D and spaced therefrom, the outer drum E being provided with an outwardly extended closed rim E. There is thus formed between the perforated drum D and the inner perforated walls B, B', B2 an annular air chamber D above the annular channel in the base, said annular air chamber communicating with the radiating air chambers hereinbefore mentioned. There is also formed thus an exterior air chamber e between the exterior drum E and the perforated drum D, said air chamber being open at the base. It will thus be perceived that the air entering the air chamber e is deflected by the rim E and compelled to pass inwardly through the perforated drum D into the air chamber D, while at the same time, as above specified, the air passing upward through the air spaces at ai a6 is diverted and compelled to pass interiorly and outwardly into the radiating air chambers and surrounding annular air chamber, said radiating air chambers and the annular air chamber D being open at the top for the passage of the products of combustion therethrough.

I prefer that each of the caps C, C', C2 should be constructed with an upwardly extended rim or flange c, to prolong the adjacent air chambers or flues and thereby to secure a better control of the iame. The inner edge of the rim E may be turned downward to form a flange e to engage the upper end of the annular perforated drum D. It will be seen that by this construction perfect vaporization of the fuel and a perfect combustion thereof may effectually be secured.

When the base is heated, it will be evident, that the hydrocarbon fuel delivered from the supply pipe is instantly vaporized, the vapor distributing itself through the annular and radiating channels, where it is at once thoroughly supplied with abundance of oxygen to afford complete combustion thereof. The lower ange of the cap may extend over and above the outside of the adjacent end of the perforated wall, preferably as shown in Fig. 5. It will be perceived that by this construction as well as by that shown in Fig. l, the cap contracts the width of the air chamber adjacent thereto, which contraction serves to hold the products of combustion down upon the flame to a desired degree, so that there shall not be too free an escape of said products from said chamber whereby perfect combustion is facilitated.

The flanges forming the channels of the base are preferably j constructed with upwardly projecting ears S, through which the adjacent perforated walls may be riveted to add firmness to the construction.

What I claim as my invention isl. In combination a base constructed with an interior channel and an exterior surrounding channel communicating with the interior channel and spaced therefrom formin g openings intermediate said channels, upwardly projecting perforated walls located upon said base about said openings respectively and forming an intermediate chamber above the interior channel, a closed cap over each of said openings at the top of said perforated walls, a perforated drum surrounding said perforated walls and spaced therefrom, forming an intermediate chamber above the exterior channel open at the top and communieating with said intermediate chamber, and an inclosing imperforate drum surrounding said perforated drum and spaced therefrom and forming an air space therebetween open at the bottom and closed at the top, substantially as described. l

2. In combination a base constructed with an exterior annular channel and with interior radiating channels communicating therewith and with one another and formed with openings intermediate said channels, perforated walls located upon said base projecting upward about said openings respectively and spaced one from another forming intermediate radiating chambers above said interior channels, a closed cap over each of said openings at the top of said perforated walls respectively, a perforated drum projecting upward at theouter margin of the exterior channel surrounding said perforated walls and spaced therefrom forming an intermediate chamber D open at the top, communicating with said radiating chambers, an inclosing drum E, and a supply pipe communicating with the channels of the base, substantially as described.

3. In combination, a base constructed with an exterior' channel a and with interior channels a, a2, a3 communicating with each other and with the exterior channel, forming openings cl-4, a5, a6 between said channels, a perforated wall projecting upward about each of said openings, forming intermediate chambers 19, 17, b2 above the interior channels, a cap located upon the upper end of each of said walls over each of said openings, a perforated drum surrounding the exterior' channel forming a chamber D between it and said perforated walls above the exterior channel, an inclosing drum E open at the base and closed at the upper end, and a supply pipe communicating with the channels of said base, substantially as described.

4. In combination a base constructed with an exterior channel and with interior channels communicating one with another and with the exterior channel forming intermediate openings, perforated walls located about said openings and projecting thereabove, forming intermediate interior chambers, a separate closed cap over each of said openings located upon the corresponding perforated wall, a perforated drum located at the periphery of the exterior channel surrounding said perforated walls and spaced there- IOO IlO

from forming an outer chamber communicating with said interior chambers open at the top, and a supply pipe communicating with the channels of the base,said caps each formed with upwardly and downwardly extended anges c and c, substantially as described.

5. In combination a base constructed with an exterior channel a provided with upwardly projecting flanges on each side of the channels, and with interior channels cornmunicating one with the other and with the exterior channel forming intermediate openings in the base and provided with upwardly projecting anges at their vopposite edges, separate perforated walls B, B', B2 projecting upward from the base about said openings and held in place by the corresponding anges of the base forming interior chambers therebetween, caps C, C', C2 engaged upon said perforated walls over saidl openings respectively, a perforated drum D engaged within the outer ange of the exterior channel, said perforated walls forming a chamber N. S. WRIGHT, JOHN F. MILLER. 

